Single-Stage Deluxe
Induced-Combustion
4-Way Multipoise Furnace
Installation, Start-up, Operating, and
Service and Maintenance Instructions
Series 120/C
NOTE:
Read the entire instruction manual before starting the
installation.
This symbol
→
indicates a change since the last issue.
→
Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1-2002©,
with permission of National Fire Protection Association, Quincy, MA 02269 and
American Gas Association, Washington DC 20001. This reprinted material is not the
complete and official position of the NFPA or ANSI on the referenced subject, which
is represented only by the standard in its entirety.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS .....................................................2
INTRODUCTION ..........................................................................3
CODES AND STANDARDS........................................................3
Safety.........................................................................................3
General Installation...................................................................5
Combustion and Ventilation Air ..............................................5
Duct Systems ............................................................................5
Acoustical Lining and Fibrous Glass Duct..............................5
Gas Piping and Gas Pipe Pressure Testing..............................5
Electrical Connections ..............................................................5
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS
PROCEDURE ................................................................................5
LOCATION....................................................................................5
General ......................................................................................5
Location Relative to Cooling Equipment ................................7
AIR FOR COMBUSTION AND VENTILATION ......................7
INSTALLATION .........................................................................10
Upflow Installation .................................................................10
Bottom Return Air Inlet ....................................................10
Side Return Air Inlet.........................................................10
Leveling Legs (If Desired)................................................10
Downflow Installation ............................................................10
Bottom Return Air Inlet ....................................................11
Horizontal Installation ............................................................12
Suspended Unit Support....................................................12
Platform Unit Support .......................................................12
Roll-Out Protection............................................................12
Bottom Return Air Inlet ....................................................13
Side Return Air Inlet.........................................................13
Filter Arrangement..................................................................13
Air Ducts.................................................................................13
General Requirements .......................................................13
Ductwork Acoustical Treatment .......................................13
Supply Air Connections ....................................................13
Return Air Connections.....................................................14
Gas Piping...............................................................................17
Electrical Connections ............................................................19
115-V Wiring.....................................................................19
J-Box Relocation ...............................................................20
Electrical Connection to J-Box .........................................20
Power Cord Installation.....................................................21
BX Cable Installation ........................................................21
24-V Wiring.......................................................................21
Accessories ........................................................................21
Venting ....................................................................................21
General Venting Requirements .........................................23
Masonry Chimney Requirements......................................23
Appliance Application Requirements ...............................27
Additional Venting Requirements.....................................29
Sidewall Venting ...............................................................29
START-UP, ADJUSTMENT, AND SAFETY CHECK ............33
General ....................................................................................33
Start-Up Procedures ................................................................33
Adjustments.............................................................................34
Check Safety Controls ............................................................36
Checklist..................................................................................37
SERVICE AND MAINTENANCE PROCEDURES..................40
Introduction .............................................................................40
General...............................................................................40
Electrical Controls and Wiring .........................................40
Care and Maintenance ............................................................43
Cleaning and/or Replacing Air Filter ...............................44
Blower Motor and Wheel..................................................44
Cleaning Heat Exchanger..................................................45
Sequence of Operation............................................................47
Wiring Diagrams.....................................................................49
Troubleshooting ......................................................................49
Cancels: II 311A-45-4
II 311A-45-5
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
Tab
6a 8a
PC 101
Catalog No. See Cover
Printed in U.S.A.
Form 58DL-5SI
Pg 1
3-05
Replaces: 58DL-4SI
